Subject

Materials & Matter

Why stuff behaves the way it does. The states of matter, why metals carry heat and current, what makes a diamond the hardest thing you'll touch, and why rubber snaps back — the physics hiding inside everyday materials.

Articles

What Makes Diamonds So Hard Diamond is the hardest natural material because every carbon atom is locked to four neighbors in a single, seamless three-dimensional cage of strong covalent bonds — yet the very same carbon atoms, bonded differently, make soft, slippery graphite.
Why Rubber Stretches and Snaps Back Rubber stretches because it's a tangle of long, wriggling polymer chains, and it snaps back because stretching forces those chains into orderly low-entropy arrangements they 'want' to escape — an elastic force driven not by stiff bonds but by disorder itself.

Where to go next

A short editorial reading list. Pick whichever fits how you like to learn.

Wikipedia: the formal definition, cross-references, and citations

Comments 0

No comments yet. Be the first to share your thoughts.